Re: R: R: Vector games on Laser show hardware

I think the biggest problem is the speed of the fastest galvos is slower
than the speed of electron beam across the fast of a CRT. Perhaps if you
kept the maximum deflection angle small, and projected the beam over a
long distance so the resulting image was large enough to be interesting,
it might work. However, I remember the guys who did lasermame a few years
ago wrote code to optimize the vector list generated by the game before
sending it to the laser to be projected.

Maybe galvos have gotten a lot faster in the last few years but I suggest
you do the math on the speed of the galvos and the speed of a typical line
drawn on the CRT before you spend any real money on equipment.

___
Ken

Zitt Zitterkopf wrote:
> I was thinking more along the lines of this:
> http://www.ti.com/product/ths4130
>
> It provides the +/- outputs and has a supply range of up to +/-15 which
> would allow the signals to be conditioned.
>
> -----Original Message----- From: vernimark
> Sent: Wednesday, December 21, 2011 11:41 PM
> To: vectorlist@vectorlist.org
> Subject: R: R: VECTOR: Vector games on Laser show hardware
>
> "The only "problem" is to convert the output of the vector generator into a
> differential signal."
>
> I think XY asteroids output circuit is a good start. asteroids supports -x
> and -y signals too if "cocktail table" mode is activated. with an easy
> modification X, Y, -X and -Y are generated at the same time in a very
> simple
> way.
> THis circuit can be easily reproduced and used between a game (or zvg) and
> ILDA interface. A couple of pots can be addeed in order to regulate all
> signals.
>
> vernimark
>
>
>
>
> -----Messaggio originale-----
> Da: owner-vectorlist@vectorlist.org
> [mailto:owner-vectorlist@vectorlist.org]Per conto di Zitt Zitterkopf
> Inviato: giovedì 22 dicembre 2011 6.07
> A: vectorlist@vectorlist.org
> Oggetto: Re: R: VECTOR: Vector games on Laser show hardware
>
>
> This project of you guys keeps coming up in my brain.
> I think it's an awesome idea.
>
> Now; I've come up with some initial brainfarts based upon some quick google
> searches:
>
> First; It appears that an iLDA compatible laser projector might fit this
> project exactly:
> http://www.laserist.org/StandardsDocs/ISP05-finaldraft.pdf
> see pp8
>
> says X,Y is +/-10
> RGB is 0-5V
> These almost match the output of my sega g08.
>
> The only "problem" is to convert the output of the vector generator into a
> differential signal. Probably a "simple" differential opamp would foot the
> bill.
>
> China seems to have a inexpensive RGB iLDA projector:
> http://www.dinodirect.com/laser-light-projector-rgb-full-color-300mw-650nm-r
>
> ed-50mw-532nm-green-150mw-450nm-blue-laser.html
> My concern of course is it's china merchandise. Unsure of the quality,
> MTBF,
> etc.
> Anyone know of a better deal / manufacturer?
>
> I *SO* want to embark on this project; just wish I had the time.
> My find the time... need some encouragement. :P
>
> Comments / suggestions?
>
> -----Original Message-----
> From: vernimark
> Sent: Thursday, December 01, 2011 4:17 PM
> To: vectorlist@vectorlist.org
> Subject: R: VECTOR: Vector games on Laser show hardware
>
> good idea. i'd like to open a project in this direction too
>
> -----Messaggio originale-----
> Da: owner-vectorlist@vectorlist.org
> [mailto:owner-vectorlist@vectorlist.org]Per conto di Andrew Welburn
> Inviato: giovedì 1 dicembre 2011 22.56
> A: vectorlist@vectorlist.org
> Oggetto: VECTOR: Vector games on Laser show hardware
>
>
> hi all..
>
> I know some of you have tried this out before, the last time i seriously
> looked into this was about 10 years ago.. one would hope the hardware has
> come down in price sicne then, or is more easily available...
>
> So can anyone reccomend a certain laser show control system, makes/models
> of steerable lasers that are up to the job? Mono or colour (if possible)
>
> --
> Andrew Welburn
> http://www.andys-arcade.com
>
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Received on Thu Dec 22 03:18:44 2011